21125456641

素因数分解:

${\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{809}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 22988188800

約数和(自身を除く): 1862732159

約数列:

[1, 19, 67, 73, 281, 809, 1273, 1387, 4891, 5339, 15371, 18827, 20513, 54203, 59057, 92929, 227329, 357713, 389747, 1029857, 1122083, 1374371, 3956819, 4319251, 15231043, 16595017, 26113049, 75179561, 289389817, 315305323, 1111866139, 21125456641]

約数ペア:

[(1, 21125456641), (19, 1111866139), (67, 315305323), (73, 289389817), (281, 75179561), (809, 26113049), (1273, 16595017), (1387, 15231043), (4891, 4319251), (5339, 3956819), (15371, 1374371), (18827, 1122083), (20513, 1029857), (54203, 389747), (59057, 357713), (92929, 227329)]